Display device or a portion thereof with graphical user interface



The sole FIGURE is a front view of a display device or a portion thereofwith graphical user interface showing the design according to theinvention.

The outermost broken line rectangle illustrates a display screen orportion thereof and forms no part of the claimed design. The remainingbroken lines and the dots connecting text features illustrate portionsof the graphical user interface and form no part of the claimed design.

CLAIM The ornamental design for a display device or a portion thereofwith graphical user interface, as shown and described.